Andrew Higgins wrote

However, these guys reportedly got 7.1 km/s:
http://www.ioffe.rssi.ru/PAPERS/94w06.pdf


Thanks for the reference; this claim, if true, would be a new velocity
record for a rail gun.

However, I would need to see more data from the actual test before
being convinced; some claims at record muzzle velocities from rail
guns have actually been jets of plasma squirting from the end of the
rails, not coherent projectiles.

http://ieeexplore.ieee.org:80/xpl/ab...rod=JNL&arnumb
er=195613&arSt=431&ared=434&arAuthor=Kawashima%2C+ N.%3B+Yamori%2C+A.%3B+Yana
gisawa%2C+M.%3B+Kubo%2C+H.%3B+Kohno%2C+M.%3B+Teii% 2C+S.&arNumber=195613&a_id
0=195609&a_id1=195610&a_id2=195611&a_id3=195612&a_ id4=195613&a_id5=195614&a_
id6=195615&a_id7=195616&a_id8=195617&a_id9=195618& a_id10=195619&a_id11=19562
0&a_id12=195621&a_id13=195622&a_id14=195623&count= 15

reports 7.45 km/s max, and always 6+ kps, again quite a few years ago.

There's a figure at
http://www.ted.isas.ac.jp/spc/railgun/railgun.html

that gives ~7.8 km/s max, but I don't know if it's actual shots or projected
results - it looks like shots, but I don't read Japanese. Anyone?


Thanks for the Sandia ref's. The guys were working at LLNL tho', so I'm
unsure whether they meant the Sandia stuff or something else, I'll ask.


BTW, the 10 km/s+ shaped-charge "thrower" isn't from ISAS as I said, but
NAL/Mitsubishi. I don't know if it's much more than a design study.


--
Peter Fairbrother